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GK21S custom kit is equipped with hot swappable terminals, with which you could install the switches directly without soldering. It’s compatible with Cherry MX switches, Kailh switches and Gateron switches and any 3 pins or 5 pins switches. You can easily build up your own mechanical numpad with this kit.
This kit is a Bluetooth module equipped with a large 750mAh capacity battery, certificated by UL. This kit adopts Broadcom Bluetooth chip. You can long press Fn+7/8/9 to connect Bluetooth with your device. With the latest Bluetooth 5.1 technology, you can enjoy fast response, low latency, lossless transmission. Make your numpad limitless to anywhere anytime.
Features RGB lighting with 16.8 million LED colors, rhythm, and sound lighting combinations, with additional key-programming and macro-creation for three definable layers. With 16.8 million colors in RGB lights, you can download additional lighting effects to the library and easily use them through the lighting effects driver. Simply connect the keyboard using the USB cable to access effects and software updates. Our database is constantly updating with different lighting effects. Enjoy a more immersive and colorful typing and gaming experience. RGB is such a cool element while playing games.
Custom is not just a word. We make it true. Here you have more than 6 driver settings. Simply download the driver and you will be able to program the backlight and macro settings, FN1/FN2/FN3 three layers program modes are available for any needs. Built-in flash memory can save the setting at offline mode, never afraid of losing it.
The GK21S was designed to be a mobile and compact device for any setting. The lightweight body is constructed from precision CNC aluminum to maximize durability and tactile satisfaction. This material build to provide a stable and firm foundation, no matter how hard you type. The full aluminum case is a more premium feature that is hard sought after by mechanical keyboard communities. Championed over plastic frames, mechanical keyboard enthusiasts have always loved the aluminum body for its durability, as well as the distinct tactile feel and sound that no plastic body can reproduce. The frames were designed with a low profile for a streamlined look that complements any setup.
We are generally able to ship to most countries via DHL Express, and many countries via Standard Shipping. You may clarify with our team to see whether Standard Shipping is available to your country.
We can only do Standard Shipping for the UK, India and Russia. We can only do Express Shipping to Africa, Argentina, Hawaii, Kuwait, Mauritius, Montenegro and Sri Lanka, to name a few.... Click here to read our Shipping Policy.
We have two shipping options - Standard Shipping and Express Shipping via DHL Express. Standard Shipping is free for orders over $130USD, while Express Shipping is 10-50USD depending on your country. Shipping fees exclude import taxes or processing fees that might be applicable for your country. Epomaker is not responsible for any form of such fees.
For in-stock products, your order will be shipped within 3 working days. Customized items will take a longer time (do check in with our staff for more information). On normal non-sale days, once your parcel has been shipped out:
On the ground of disliking a product, you may return any non-customized and non-sales product that is sealed, within the 7 days upon receiving it. To be eligible for a return, your item must be unused and in the same condition that you received it. It also must be in the original packaging. Customized and sales products, accessories, or spare parts are excluded from the 7-day return policy. The shipping fee, handling fees, or any form of tax caused by return will NOT be refunded.
Additionally, a restocking fee (35% of the item’s retail value) will be charged under this circumstance... Click here to read our full return policy.
Epomaker offers a 1-year warranty for keyboards and DIY kits, and offers a 6-month warranty for keycap sets and cases (e.g the case-only product sold separately). Batteries will be covered by the 3-month warranty. Accessories such as keycap pullers, switch pullers, free spare keycaps, cables etc., are excluded from the warranty. To claim for a warranty or confirm whether your product is eligible for return/warranty, please kindly contact us via support@epomaker.com.
The warranty does not extend to any product whose serial number has been defaced or altered, just as the warranty will cease if you make modifications in the software not authorized by Epomaker. Click here to read our full Warranty Policy.
For items that are damaged, incorrect, or faulty upon delivery, you must contact support@epomaker.com within 7 days upon delivery. You need to provide any solid proof of the problem you come across. Epomaker will help you identify the problem, and may cover the shipping cost according to the agreed amount. Please kindly note that a shipping fee that is extremely higher than the 15% of product value is non-refundable. The shipping fee won’t be refunded if the product is not with any manufacturer defects.
